CN1903721A - Artificial crystal synthesizing mica and its preparation technology - Google Patents
Artificial crystal synthesizing mica and its preparation technology Download PDFInfo
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- CN1903721A CN1903721A CN 200510044178 CN200510044178A CN1903721A CN 1903721 A CN1903721 A CN 1903721A CN 200510044178 CN200510044178 CN 200510044178 CN 200510044178 A CN200510044178 A CN 200510044178A CN 1903721 A CN1903721 A CN 1903721A
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Abstract
The present invention relates to artificial crystal synthetic mica and its preparation process. Its raw material composition includes (by wt%) 33%-37% of quartz, 28%-31% of magnesium oxide, 9%-12% of aluminium oxide, 18%-21% of potassium fluorosilicate and 0.3%-0.4% of potassium carbonate. Its preparation process includes the procedures of preparing raw materials, processing in container and melting, etc.
Description
Technical field
The present invention relates to a kind of artificial crystal synthesized mica preparation method.
Background technology
Mica is a kind ofly to have better insulativity, erosion resistance and high temperature resistant, high-temperature vacuum to transfer the low a kind of crystalline substance of air exhaustion, is widely used in military, civilian and every field.But natural muscovite, 400-500 ℃ of decomposition, the fusing point of phlogopite is at 600-800 ℃.Its various aspects of performance especially shows high temperature resistant and corrosion-resistant aspect, can not satisfy industrial higher requirement.
Summary of the invention
At the deficiencies in the prior art, the purpose of this invention is to provide a kind of efficient, energy-conservation artificial crystal synthesized mica preparation technology and device, and then produce that performance is better, purity is higher, the better artificial crystal synthesized mica of snappiness and electric equipment products.
The technical solution adopted for the present invention to solve the technical problems is: the artificial crystal synthesized mica raw material comprises: quartz sand, magnesium oxide, aluminum oxide, potassium silicofluoride and salt of wormwood; Its feed composition proportioning is; Quartzy 33%-37%, magnesium oxide 28%-31%, aluminum oxide 9%-12%, potassium silicofluoride 18%-21%, salt of wormwood 0.3%-0.4%.Each raw material specification granularity; Quartz sand 80-100 order, magnesium oxide 80-100 order, aluminum oxide 80-100 order, potassium silicofluoride 120-180 order, salt of wormwood 20-40 order.The purity of each raw material; Quartz sand 96-99%, magnesium oxide 94-98%, aluminum oxide 95-98%, potassium silicofluoride 96-99%, salt of wormwood 94-98%.
Concrete preparation technology:
(1) batching; Above-mentioned raw materials is required to mix in proportion, standby to do.
(2) make container; Container must be built into refractory brick, and by the dress Graphite Electrodes, the shape of container will be made into ellipse along with electrode pendulum side in the container.
(3) fusion; With above-mentioned raw materials on request ratio granularity and precision be mixed and insert in the container, insert 2 phase power supplys, the raw material in the container is carried out melt-processed generates synthetic mica, whole melting process is divided into three phases according to the gear difference.
One grade, start button is with K1, K3 closure, and electric current rises to 420A gradually by 0A, and this stage kept 30 minutes.
Second gear; Electric current drops to below the 200A gradually, changes 2 grades, contactor K2, K4 closure.Voltmeter is transferred to 220V, be no more than 230V at most.Reometer can be raised to 1000A, opens roasting kiln electrode water coolant, is the electrode cooling.Gradually electric current rises between 1100A to 1250A, and this stage reached about 20 hours.
Three retaining voltages are reduced to and are changed 3 grades below the 105V, contactor K2, K4, K5 closure, again voltage is risen to 110V, electric current is about 1200A, and voltage is 600V, to about 45 hours, electric current reaches 2000A, and this stage kept about 60 hours, slowly step-down, reduce to 170KW and have a power failure, make it generate artificial crystal synthesized mica in the normal temperature cooling.
(4) electrical installation; Adopt 2 phase power-supply controller of electric equity in molten device to place 2 groups of heating electrode templates, perpendicular rod of heating electrode and camber electrode bar, with electric preparation in 2 mutually power supply link.
Adopt positively effect of the present invention to be: erosion resistance height, synthetic mica of the present invention all do not react in the concentrated acid alkaline solution.
Heat-resisting can property good, heat 1200 ℃ and be modification not substantially.Mechanicalness is higher: synthetic mica of the present invention easier machine worker peel off in flakes.Dielectric properties are stable, and the venting rate is low under the vacuum, can obtain extensive popularizing action at electrical equipment, machinery, paint, chemical industry, metallurgy, makeup, pearly pigment and space industry.
Embodiment
1, makes container; Container must be built into refractory brick, and by the dress Graphite Electrodes, the shape of container will be made into ellipse along with middle utmost point pendulum side in the container.
2, the granularity of several each material of composition of raw materials, purity;
Quartzy 33%-37%, 80-100 order 96-99%
Magnesium oxide 28%-31%, 80-100 order 94-98%
Aluminum oxide 9%-12%, 80-100 order 95-98%
Potassium silicofluoride 18%-21%, 120-180 order 96-99%
Salt of wormwood 0.3%-0.4%, 20-40 order 94-98%.
3, preparation technology:
(1) with the raw material in the right 1 on request ratio, granularity and precision processing mix, standby to do.
(2) prepare to make container, because of following manufacture technology will produce high temperature, so container must be built into refractory brick, by the dress Graphite Electrodes, the shape of container will be made into ellipse along with electrode pendulum side in the container.
(3) raw material of step 1 is sneaked in the container of step 2, inserts 2 phase power supplys, the raw material in the container is carried out melt-processed generate synthetic mica, below whole melting process be divided into three phases according to the gear difference.
One retaining; Start button is with K1, K3 closure, and electric current rises to 420A gradually by 0A, and this stage kept 30 minutes, and electric current never allows to surpass 480A.
Two retainings; Electric current drops to below the 200A gradually, changes 2 grades, contactor K2, K4 closure.Voltmeter is transferred to 220V, be no more than 230V at most.Reometer can be raised to 1000A, opens roasting kiln electrode water coolant, is the electrode cooling.Gradually electric current rises between 1100A to 1250A, and this stage reached about 20 hours.
Three retainings; Voltage is reduced to and is changed 3 grades below the 105V, and contactor K2, K4, K5 closure rise to 110V with voltage again, and electric current is about 1200A, and voltage is 600V, and to about 45 hours, electric current reaches 2000A, and this stage kept about 60 hours, and slowly step-down is reduced to 170KW and had a power failure.
Above technology generates mica, makes it generate artificial crystal synthesized mica in the normal temperature cooling.
(5) container preparation; Container is to use refractory brick to be built into, the crystal that generates produce behind the synthetic mica its container strip off, on crystal, punch, be separated into piece.According to demand synthetic mica is carried out secondary processing again, meet the need of market.
(6) electrical installation; We prepare 2 phase power-supply controller of electric with it and are divided into following several:
1. equity is placed 2 groups of heating electrode templates, perpendicular rod of heating electrode and camber electrode bar in molten device, with electric preparation in 2 mutually power supply link.
2. whole electrical equipment operating system is divided high-pressure section and low-pressure section, and high-pressure section comprises: high pressure connection cabinet, high-tension transformer, and low pressure comprises: the high power low-frequency voltate regulator, big current converter, low pressure are regulated operation cabinet, lv contactor, the inactivity compensation device, power-measuring device etc.
3. the outlet of high pressure connection cabinet connects master sideline, the high-tension side circle of high-tension transformer, the low-tension side secondary coil of transformer links to each other with the input terminus of high-power voltate regulator, the power winding of voltate regulator and strong current generator master sideline circle and pressure regulation contactor link, and its secondary coil is connected with pressure regulation contactor and side amount device.
(7) the 10KV high pressure of high-tension switch cabinet output is reduced to the 380V low voltage by high-tension transformer, and then be adjusted to 750V by voltate regulator, by regulating the mode of connection of contactor change strong current generator, export the different voltage of 0-750V afterwards to obtain the electric current that 0-2000A does not wait.
(8), for effective regulating and controlling roasting kiln electric current, voltage, utilize lv contactor to change the mode of connection of voltate regulator and strong current generator.Have six lv contactors, wherein K1, K2, K3 are 2 contactors, and K4, K5, K6 are 4 utmost point contactors.
(9) for reducing reactive loss, improve quality of voltage, the present invention has also installed Electric capacity compensation device at step down side, according to negative symbol characteristics, divides the Pyatyi automatic switching, and power factor is remained in the 0.9-0.98 scope.
(10) for each gear during guaranteeing gear shift accurately moves, in electric control loop, install the electrical equipment securing device additional, voltate regulator is an electrically operated, and installed overcurrent protective device additional, alarm with alarm bell and light mode.
The synthetic artificial lens mica that adopts the present invention to produce has following advantage.
(1), corrosion resistance height: synthetic mica of the present invention has better chemical stability, has in the concentrated acid aqueous slkali equal Do not react. (2), heat energy is good: this synthetic mica is basic modification not, natural cloud 1200 ℃ of heating Female just the beginning between 450 ℃-650 ℃ decomposed. So the synthetic mica that the present invention generates is than the high warm nature of natural mica Can be more stable. (3), mechanicalness is higher: synthetic mica of the present invention easier machine worker peel off in flakes. (4), Dielectric properties are stable. (5), the venting rate is low under the vacuum: this artificial crystal synthesized mica has the natural mica can't The performance that reaches, the value of synthetic mica will improve greatly, utilize scope also in continuous expansion, can Electrical equipment, machinery, paint, chemical industry, metallurgy, cosmetics, pearlescent pigment and space industry are extensively pushed away Wide effect.
Claims (5)
1, a kind of artificial crystal synthesized mica and preparation technology is characterized in that the artificial crystal synthesized mica raw material comprises: quartz sand, magnesium oxide, aluminum oxide, potassium silicofluoride and salt of wormwood; Its feed composition proportioning is; Quartzy 33%-37%, magnesium oxide 28%-31%, aluminum oxide 9%-12%, potassium silicofluoride 18%-21%, salt of wormwood 0.3%-0.4%.
2, according to described artificial crystal synthesized mica of claim 1 and preparation technology, it is characterized in that: each raw material specification granularity; Quartz sand 80-100 order, magnesium oxide 80-100 order, aluminum oxide 80-100 order, potassium silicofluoride 120-180 order, salt of wormwood 20-40 order.
3, according to claim 1,2 described artificial crystal synthesized mica and preparation technologies, it is characterized in that: the purity of each raw material; Quartz sand 96-99%, magnesium oxide 94-98%, aluminum oxide 95-98%, potassium silicofluoride 96-99%, salt of wormwood 94-98%.
4, according to claim 1,2,3 described artificial crystal synthesized mica and preparation technologies, its process for making comprises:
(1) batching; Process raw material according to the proportioning that raw material requires in the claim 1,2,3, purity and precision apolegamy, mix, standby to do.
(2) make container; Because of following manufacture technology will produce high temperature, so container must be built into refractory brick, by the dress Graphite Electrodes, the shape of container will be made into ellipse along with electrode pendulum side in the container.
(3) fusion; The raw material of step 1 is sneaked in the container of step 2, insert 2 phase power supplys, the raw material in the container is carried out melt-processed generate synthetic mica.
Whole melting process is divided into three phases according to the gear difference.
One grade, start button is with K1, K3 closure, and electric current rises to 420A gradually by 0A, and this stage kept 30 minutes.
Second gear; Electric current drops to below the 200A gradually, changes 2 grades, contactor K2, K4 closure.Voltmeter is transferred to 220V, open roasting kiln electrode water coolant, be the electrode cooling.Gradually electric current rises between 1100A to 1250A, and this stage reached about 20 hours.
Three retaining voltages are reduced to and are changed 3 grades below the 105V, contactor K2, K4, K5 closure, again voltage is risen to 110V, electric current is about 1200A, and voltage is 600V, to about 45 hours, electric current reaches 2000A, and this stage kept about 60 hours, slowly step-down, reduce to 170KW and have a power failure, make it generate artificial crystal synthesized mica in the normal temperature cooling.
5, according to described artificial crystal synthesized mica of claim 4 and preparation technology, its electrical installation adopts 2 phase power-supply controller of electric equity in molten device to place 2 groups of heating electrode templates, perpendicular rod of heating electrode and camber electrode bar, with electric preparation in 2 mutually power supply link.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659129A (en) * | 2012-05-04 | 2012-09-12 | 杨修直 | Method for preparing ultrathin synthetic mica crystal powder |
| CN102718229A (en) * | 2012-05-04 | 2012-10-10 | 杨修直 | Synthesized mica crystal plate with high flexibility and high splitting performance as well as preparation method |
| CN102951654A (en) * | 2012-11-21 | 2013-03-06 | 四川雷得云母有限公司 | Production process for synthetizing mica artificially |
| CN102951653A (en) * | 2011-08-31 | 2013-03-06 | 吕宝林 | Synthetic fluorophlogopite and preparation method thereof |
| CN103073011A (en) * | 2013-02-17 | 2013-05-01 | 华东理工大学 | Method for preparing synthetic mica under segmental control |
| CN104818530A (en) * | 2015-04-21 | 2015-08-05 | 汕头保税区三宝光晶云母科技有限公司 | Crystal synthesis furnace and application thereof |
| CN104876233A (en) * | 2015-04-16 | 2015-09-02 | 汕头保税区三宝光晶云母科技有限公司 | Method for preparing artificially synthesized fluorophlogopite |
| CN104876234A (en) * | 2015-04-16 | 2015-09-02 | 汕头保税区三宝光晶云母科技有限公司 | Preparation method for manually synthesized fluorophlogopite |
-
2005
- 2005-07-27 CN CN 200510044178 patent/CN1903721A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951653A (en) * | 2011-08-31 | 2013-03-06 | 吕宝林 | Synthetic fluorophlogopite and preparation method thereof |
| CN102951653B (en) * | 2011-08-31 | 2014-09-10 | 吕宝林 | Synthetic fluorophlogopite and preparation method thereof |
| CN102659129A (en) * | 2012-05-04 | 2012-09-12 | 杨修直 | Method for preparing ultrathin synthetic mica crystal powder |
| CN102718229A (en) * | 2012-05-04 | 2012-10-10 | 杨修直 | Synthesized mica crystal plate with high flexibility and high splitting performance as well as preparation method |
| CN102951654A (en) * | 2012-11-21 | 2013-03-06 | 四川雷得云母有限公司 | Production process for synthetizing mica artificially |
| CN102951654B (en) * | 2012-11-21 | 2015-02-04 | 四川雷得云母有限公司 | Production process for synthetizing mica artificially |
| CN103073011A (en) * | 2013-02-17 | 2013-05-01 | 华东理工大学 | Method for preparing synthetic mica under segmental control |
| CN104876233A (en) * | 2015-04-16 | 2015-09-02 | 汕头保税区三宝光晶云母科技有限公司 | Method for preparing artificially synthesized fluorophlogopite |
| CN104876234A (en) * | 2015-04-16 | 2015-09-02 | 汕头保税区三宝光晶云母科技有限公司 | Preparation method for manually synthesized fluorophlogopite |
| CN104818530A (en) * | 2015-04-21 | 2015-08-05 | 汕头保税区三宝光晶云母科技有限公司 | Crystal synthesis furnace and application thereof |
| CN104818530B (en) * | 2015-04-21 | 2017-03-08 | 汕头保税区三宝光晶云母科技有限公司 | A kind of Opacity in lens stove and its application |
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